CVE-2025-21440: Out-of-bounds Read in Windows WLAN Host
Published Apr 7, 2025
·Updated
Memory corruption when IOCTL call is invoked from user-space to write board data to WLAN driver.
Affected Software
99 affected components
Microsoft Windows WLAN Host
All of the following
Qualcomm Aqt1000 Firmware
Qualcomm Aqt1000
All of the following
Qualcomm Fastconnect 6200 Firmware
Qualcomm Fastconnect 6200
All of the following
Qualcomm Fastconnect 6700 Firmware
Qualcomm Fastconnect 6700
All of the following
Qualcomm Fastconnect 6800 Firmware
Qualcomm Fastconnect 6800
All of the following
Qualcomm Fastconnect 6900 Firmware
Qualcomm Fastconnect 6900
All of the following
Qualcomm Fastconnect 7800 Firmware
Qualcomm Fastconnect 7800
All of the following
Qualcomm Qca1062 Firmware
Qualcomm Qca1062
All of the following
Qualcomm Qca1064 Firmware
Qualcomm Qca1064
All of the following
Qualcomm Qca2062 Firmware
Qualcomm Qca2062
All of the following
Qualcomm Qca2064 Firmware
Qualcomm Qca2064
All of the following
Qualcomm Qca2065 Firmware
Qualcomm Qca2065
All of the following
Qualcomm Qca2066 Firmware
Qualcomm Qca2066
All of the following
Qualcomm Qca6391 Firmware
Qualcomm Qca6391
All of the following
Qualcomm Qca6420 Firmware
Qualcomm Qca6420
All of the following
Qualcomm Qca6430 Firmware
Qualcomm Qca6430
All of the following
Qualcomm Qcc2073 Firmware
Qualcomm Qcc2073
All of the following
Qualcomm Qcc2076 Firmware
Qualcomm Qcc2076
All of the following
Qualcomm Qcm5430 Firmware
Qualcomm Qcm5430
All of the following
Qualcomm Qcm6490 Firmware
Qualcomm Qcm6490
All of the following
Qualcomm Qcs5430 Firmware
Qualcomm Qcs5430
All of the following
Qualcomm Qcs6490 Firmware
Qualcomm Qcs6490
All of the following
Qualcomm Video Collaboration Vc3 Platform Firmware
Qualcomm Video Collaboration Vc3 Platform
All of the following
Qualcomm Sc8180x\+sdx55 Firmware
Qualcomm Sc8180x\+sdx55
All of the following
Qualcomm Sc8380xp Firmware
Qualcomm Sc8380xp
All of the following
Qualcomm Sm6250 Firmware
Qualcomm Sm6250
All of the following
Qualcomm Snapdragon 7c Compute Platform \(sc7180-ac\) Firmware
Qualcomm Snapdragon 7c Compute Platform \(sc7180-ac\)
All of the following
Qualcomm Snapdragon 7c Gen 2 Compute Platform \(sc7180-ad\) \"rennell Pro\" Firmware
Qualcomm Snapdragon 7c Gen 2 Compute Platform \(sc7180-ad\) \"rennell Pro\"
All of the following
Qualcomm Snapdragon 7c\+ Gen 3 Compute Firmware
Qualcomm Snapdragon 7c\+ Gen 3 Compute
All of the following
Qualcomm Snapdragon 8c Compute Platform \(sc8180x-ad\) Firmware
Qualcomm Snapdragon 8c Compute Platform \(sc8180x-ad\)
All of the following
Qualcomm Snapdragon 8c Compute Platform \(sc8180xp-ad\) Firmware
Qualcomm Snapdragon 8c Compute Platform \(sc8180xp-ad\)
All of the following
Qualcomm Snapdragon 8cx Compute Platform \(sc8180x-aa\) Firmware
Qualcomm Snapdragon 8cx Compute Platform \(sc8180x-aa\)
All of the following
Qualcomm Snapdragon 8cx Compute Platform \(sc8180x-ab\) Firmware
Qualcomm Snapdragon 8cx Compute Platform \(sc8180x-ab\)
All of the following
Qualcomm Snapdragon 8cx Compute Platform \(sc8180xp-ac\) Firmware
Qualcomm Snapdragon 8cx Compute Platform \(sc8180xp-ac\)
All of the following
Qualcomm Snapdragon 8cx Compute Platform \(sc8180xp-af\) Firmware
Qualcomm Snapdragon 8cx Compute Platform \(sc8180xp-af\)
All of the following
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180x-ac\) Firmware
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180x-ac\)
All of the following
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180x-af\) Firmware
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180x-af\)
All of the following
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180xp-aa\) Firmware
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180xp-aa\)
All of the following
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180xp-ab\) Firmware
Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform \(sc8180xp-ab\)
All of the following
Qualcomm Wcd9340 Firmware
Qualcomm Wcd9340
All of the following
Qualcomm Wcd9341 Firmware
Qualcomm Wcd9341
All of the following
Qualcomm Wcd9370 Firmware
Qualcomm Wcd9370
All of the following
Qualcomm Wcd9375 Firmware
Qualcomm Wcd9375
All of the following
Qualcomm Wcd9380 Firmware
Qualcomm Wcd9380
All of the following
Qualcomm Wcd9385 Firmware
Qualcomm Wcd9385
All of the following
Qualcomm Wsa8810 Firmware
Qualcomm Wsa8810
All of the following
Qualcomm Wsa8815 Firmware
Qualcomm Wsa8815
All of the following
Qualcomm Wsa8840 Firmware
Qualcomm Wsa8840
All of the following
Qualcomm Wsa8845 Firmware
Qualcomm Wsa8845
All of the following
Qualcomm Wsa8845h Firmware
Qualcomm Wsa8845h
Event History
Apr 7, 2025
CVE Published
via MITRE·10:16 AM
Data Sourced
via MITRE·10:16 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-21440?
CVE-2025-21440 is classified as a critical severity vulnerability due to potential memory corruption risks.
2
How do I fix CVE-2025-21440?
To fix CVE-2025-21440, apply the latest security patch provided by Microsoft for the Windows WLAN Host.
3
What systems are affected by CVE-2025-21440?
CVE-2025-21440 affects the Microsoft Windows WLAN Host used in various Windows operating systems.
4
What is the impact of exploiting CVE-2025-21440?
Exploiting CVE-2025-21440 can lead to potential system crashes or unauthorized access due to memory corruption.
5
How is CVE-2025-21440 exploited?
CVE-2025-21440 can be exploited through an IOCTL call invoked from user space to manipulate WLAN driver board data.